Endometriosis as a disease in which tissue similar to the lining of the uterus grows outside the uterus.
Endometriosis in other instances can cause severe pain in the pelvis.
The World Health Organisation says endometriosis can start at a person’s first menstrual period and last until menopause.
There is currently no known cure for endometriosis and treatment is usually aimed at controlling symptoms.
Access to early diagnosis and effective treatment of endometriosis is important but is limited in many settings, including in low- and middle-income countries.
